Songs that you wish were properly recorded but only exist as demos/live recordings

Look Blue Go Purple - Ralta

Joni Mitchell - Hunter

Stina Nordenstam - 'And the Winner Is...' Give Me More of Everything, and Common Miracle (she recorded the first two during the sessions for The World Is Saved sessions, but they didn't make it onto that album, though they were included in a documentary prior to its release)

Jackie DeShannon - Jackie DeShannon - Something in your Blood (she recorded several albums' worth of publisher demos, some of which were successfully peddled to other artists and some of which were left to rot)

Aztec Camera - Green Jacket Grey

Marshall Crenshaw - My Favourite Waste of Time

Nina Nastasia - the four Run to Ruin outtakes that make up her May 3, 2002 Peel Session

Paul Westerburg - Men Without Ties

This

https://www.youtube.com/watch?v=RPEhIoKeTg0

Jon Brion - "Citgo Sign"

His acoustic live versions promise power-pop rapture, but the demo did not deliver those particular goods.

A lot of Spiritalized songs were amazing in early live versions but we're completely rearranged on the albums (and not for the better). "Take Good Care of It" and "Goodnight Goodnight / Funeral Home" are the first two that come to mind.

Did "Solicitor in Studio" ever get a studio version?

Its not a lost Fall classic as such, but hey.

Canned Heat - "Pulling Hair Blues"

The live version was at least released on an album and a best-of, but oh, for a studio version of Polyrock - Warm & Dry

Pavement -- For Sale, The Preston School of Industry